kevin gilmore Posted May 31, 2015 Author Report Posted May 31, 2015 new power supply, 100ma version angle bracket sicfet pass transistor coming for the higher power applications.
kevin gilmore Posted May 31, 2015 Author Report Posted May 31, 2015 http://gilmore.chem.northwestern.edu/kgsshvpssic.jpg good for at least 100ma on each rail with enough heatsink 1
gepardcv Posted May 31, 2015 Report Posted May 31, 2015 Now that will be a fun challenge to fit into the same box as two carbon boards. Definitely putting this into the project queue.
kevin gilmore Posted May 31, 2015 Author Report Posted May 31, 2015 2 amp boards on one side, the power supply and transformer on the other side
Laowei Posted May 31, 2015 Report Posted May 31, 2015 Is this a better PS to use with a KGSSHV Carbon? I was planning using a KGBH/ST version.
nopants Posted May 31, 2015 Report Posted May 31, 2015 I thought the original KGSSHV supply was good to 90ma with 3904s? Offboarding is a welcome addition though
gepardcv Posted June 1, 2015 Report Posted June 1, 2015 Do the SiC MOSFETs need to be matched at all for either the PSU or the amp boards?
Laowei Posted June 1, 2015 Report Posted June 1, 2015 According to Birger, no matching of the SiCs required on the amps.
nopants Posted June 1, 2015 Report Posted June 1, 2015 (edited) Maybe a good opportunity to change STTH512FB to STTH512FP, I just googled the first part again Edit: Can the SiC also be jammed into the simpler BHSE supply? Edited June 1, 2015 by nopants
kevin gilmore Posted June 1, 2015 Author Report Posted June 1, 2015 its a to246, so it would have to be a different heatsink, and a different footprint
nopants Posted June 1, 2015 Report Posted June 1, 2015 oh, I was thinking just leave it offboard and let the user handle sinking. Wondering what the dis/advantages are to the fq* part
JoaMat Posted June 2, 2015 Report Posted June 2, 2015 (edited) / Edited November 11, 2015 by JoaMat 1
sorenb Posted June 3, 2015 Report Posted June 3, 2015 (edited) @joamat: - why did you change the servo? - do you do your own Stax jacks? ...looks like that from your pic?? Edited June 3, 2015 by sorenb
nopants Posted June 3, 2015 Report Posted June 3, 2015 I just realized this, but how are you powering the LV section JoaMat? If you're using your T2 supply, I thought there was only 12V available
JoaMat Posted June 3, 2015 Report Posted June 3, 2015 (edited) I use the T2 PSU sometimes and it has 12V LV section but it seems to work. Edited November 12, 2015 by JoaMat
nopants Posted June 3, 2015 Report Posted June 3, 2015 That's good to know, I have some 12V power ones that can get some use
gepardcv Posted June 4, 2015 Report Posted June 4, 2015 Would it be bad to stack the two carbon amp boards on top of each other (perhaps slightly offset)? That would make it possible to use a smaller case than if they are placed side-by-side.
kevin gilmore Posted June 4, 2015 Author Report Posted June 4, 2015 as long as the heatsink is big enough, that should be fine, and put the power supply on the other heatsink. its still going to be a fairly big box
nopants Posted June 4, 2015 Report Posted June 4, 2015 There are a number of case options with a single heatsink, I couldn't really figure out how do the IO for those in a tidy manner
gepardcv Posted June 4, 2015 Report Posted June 4, 2015 I think that a build will fit in a Modushop Dissipante 2U 300 with stacked amp boards, but didn't actually lay it out to double-check. Not a small box, but not monstrous, either. A fully-custom chassis should allow more space saving.
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